How many grams of antifreeze, C2H4(OH)2, would be required per 500. g of water to prevent the water from freezing at a temperature of 20.0C? 2
BCHM 307 Week 2 Notes Erin VanHoosier Ch. 4 Protein Structure 4-1: Proteins are Chains of Amino Acids Protein: biological molecule consisting of one or more polypeptides Polypeptides: chains of polymerized (combined) amino acids Amino Acid (AA) : small molecule containing an amino group, carboxylate group and side chain (R group…can be anything!) The 20 AAs have different chemical properties: The R GROUPS make the 20 AAs UNIQUE APPHA CARBONS: are the carbons attached to the amino and carboxylate groups Chirality: the positioning of the molecule in relation to the alpha carbon o Different positioning makes for DIFFERENT molecule
